Is the wage received by someone who works in a commercial store, whose job it is to take out goods and load them into the customer's car, in a store where there are two groups: one that deals with cheating and raising prices, and the other that sells in a way that pleases Allah, lawful or unlawful?

There is no objection to your work of carrying goods for customers, nor to the salary you receive for it. The seller’s occasional lying does not affect your work. However, you must advise him to be truthful and to stop lying, as lying in sales eradicates blessing. If you fulfill your duty of enjoining good and forbidding evil, the misguidance of others will not harm you.